Lifting-jack



(No Model.)

0. S. WINEY.

LIFTING JAOK.

Patented Apr. 8, 1890 qxwcmeooeo UNITED STATES PATENT @FFICE.

CHRISTIAN S. IVINEY, OF RIGHFIELD, PENNSYLVANIA.

LlFTl-NG-JACK.

SPECIFICATION forming part of Letters Patent No. 425,358, dated April 8, 1890. Application filed February 21, 1890. Serial No. 341,313. (No model.)

To all whom it may concern:

Be it known that I, CHRISTIAN S. W1NnY,a citizen of the United States of America, residing at Riehfield, in the county of Juniata and State of Pennsylvania, have invented certain new and useful Improvements in Lifting- Jacks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters of reference marked thereon, which forms a part of this specification.

My invention relates to certain new and useful improvements in lifting-jacks; and it consists in a lifting-jack one of the legs of which is made of two parallel pieces bolted to each other, and to which leg is pivoted a second leg, which carries near its lower end a ratchet-bar, whereby the distance between the lower ends of the legs can be varied and held, a lever being secured between the upper ends of the parallel legs, as will be here inafter fully set forth, and particularly pointed out in the claim.

In the accompanying drawing the figure is a perspective view of a lifting-jack constructed in accordance with my invention.

A refers to one of the legs of my improved lifting-jack, which is made of two similarlyshaped pieces, and between the lower ends of the same is interposed a block a.

b, c, d, and e refer to bolts or bars having the ends upset over Washers, and these bolts not only serve to secure the two pieces of the leg A together, but also serve other purposes, as will be hereinafter mentioned.

13 refers to a leg which is pivoted to theleg A at the upper end thereof by means of the bolt 0, and near the lower end of this leg is an eyebolt f, with which engages a strap or loop g 011 the end of the ratchet-bar O. The teeth of this ratchet-bar incline, as shown, an d engage with the central portion of the bolt 6 and prevent the leg B from spreading when in engagement therewith. The height of the upper end of the leg A, to which the liftinglever is secured, can be l egulated by moving the leg B in or out from the leg A.

D refers to the lifting-lever, which is pivoted between the upper end of the pieces which form the leg A and has ratchet-teeth on the upper edge of the long end, with which a bail E engages, this bail being made up of a single bar of metal, the ends thereof being turned over the bolt (1.

In operation, when it is desired to adjust the legs of the lifting jack to the proper height, the bail E may be placed in the first notch in the long arm of the lever D. The lifting-jack can then be placed under the axle of a vehicle, the weight thereof resting upon the leg A, and the leg Bis permitted to swing until it contacts with the ground, and when the long end of the lever is depressed theleg B will be prevented from spreading by reason of the ratchet-bar C engaging with the pin 6'. The ratchet-bar may be raised by the operators foot, and by simply raising upon the lever the lower ends of the legs will be separated to lower the short end of the lever.

I am aware that prior to my invention it has been proposed to provide a lifting-jack with a lever and securing-bail for said lever, said securing-lever being attached to one of the legs of the jack, such a jack being provided with a base, as will more fully appear by reference to Patent No. 331,415, and I do not claim such construction as my invention; but

What I claim as new, and desire to secure by Letters Patent, is-

A lifting-jack composed of a long leg A, made of two pieces, which are held together by bolts 1), c, d, and e, a short leg B, secured thereto by the bolt 0 below the upper end of the long leg and provided near its lower end with an eyebolt and ratchet-bar G, the teeth of which are adapted to engage with the center portion of the bolt e, a hand-lever D, pivoted between the upper ends of the leg A, said lever having ratchets, and a bail secured to the bolt (1 for engaging with said ratchets, the parts being combined and organized substantially as shown, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHRISTIAN S. \VINEY.

Witnesses:

ABEL SHIRK, JAMES BANKS. 

